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"The thrill of unexpected discovery" — That, according to Isaac Asimov in his introduction to this highly thought0provoking book, "cannot help but stir the blood." And stir the blood he does, as the reader is taken on an intriguing journey through basic scientific questions dealing with Earth (How high is up?), to the physicist's real land (it's ... more »called "Mu"), and ultimately, to the most baffling speculation of all - the size of the entire universe! But whatever the immediate subject at hand, Dr. Asimov is always brilliant in his lucid exposition of the most current scientific theories. He has given us "a book to stretch the mind and the imagination...glimpses of the vast domain of the sciences." Choice« less